Their action was supported by the Central Committee of the Communist Party of China. Upon the decision of the superior, the Anti-Four Brigade, which originally planned to form a propaganda team, and the war correspondent group being formed were merged to form a comprehensive literary propaganda group, such as the War Service Group. Mao Zedong and Ding Ling talked several times. Mao Zedong said, "This work is very important and good for you. Going to the front can get close to the troops and the masses, publicize the party's policies and expand the party's influence. In propaganda, you should be welcomed by the masses, whether it is new bottled wine or old bottled wine, it should be short and pithy, suitable for the war environment and liked by the people. You should publicize our party's anti-Japanese proposition to friendly forces and expand the political influence of our party and our army. " Ding Ling conveyed these important and specific instructions from Mao Zedong to the committee members.
On August 12 of that year, a Northwest Field Service Corps (referred to as "Western War Corps") was born. The inaugural meeting was held that day, and 23 members attended. At the meeting, on behalf of Publicity Department of the Communist Party of China, Zhu Guang talked about the tasks, preparation process and organization of the Western War Group. Subsequently, the appointment was announced: Ding Ling was appointed as the director of the group and Wu Xiru was appointed as the deputy director. The meeting defined the nature of the Western War Corps, discussed and adopted the action plan, the Corps' articles of association and the founding declaration. Subsequently, the program of action, the declaration of establishment, electricity and so on were published in Xinhua Daily on August 1937.